
TY  - JOUR
A1  - Dyason, JC 
A1  - Engelhardt, LM 
A1  - Pakawatchai, C 
A1  - Healy, PC 
A1  - White, AH 
T1  - Lewis-Base Adducts of Group 1B Metal(I) Compounds. XXI The Crystal and Molecular Structures of the Unsolvated Forms of Dibromotris(triphenylphosphine)dicopper(I) and 'step' Tetrabromotetrakis(triphenyl-phosphine)tetracopper(I)
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1985
VL  - 38
IS  - 8
SP  - 1243
EP  - 1250
KW  - 
UR  - https://doi.org/10.1071/CH9851243 
N2  - The crystal structures of the title compounds have been determined by single-crystal X-ray diffraction methods at 295 K. Crystal data for (PPh3)2CuBr2Cu(PPh3) (1) show that the crystals are iso-morphous with the previously studied chloro analogue, being monoclinic, P21/c, a 19.390(8), b 9.912(5), c 26.979(9) &#506;, &#946; 112,33(3)&#176;; R 0.043 for No 3444. Cu( trigonal )- P;Br respectively are 2.191(3); 2.409(2), 2.364(2) &#506;. Cu(tetrahedral)- P;Br respectively are 2.241(3), 2.249(3); 2.550(2), 2.571(2) &#506;. Crystals of 'step' [PPh3CuBr]4 (2) are isomorphous with the solvated bromo and unsolvated  iodo analogues, being monoclinic, C2/c, a 25.687(10), b 16.084(7), c 17.815(9) &#506;, &#946; 110.92(3)&#176;; R 0.072 for No 3055. Cu( trigonal )- P;Br respectively are 2.206(5); 2.371(3), 2.427(2) &#506;. Cu(tetrahedral)- P;Br are 2.207(4); 2.446(2), 2.676(3), 2.515(3) &#506;. 
ER  -

